Home / 231,013,921.55-318,814,852.98-130,507,499.97

Finding the Fourth Proportional to 231,013,921.55, 318,814,852.98 and 130,507,499.97

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Solution

The fourth proportional to 231,013,921.55, 318,814,852.98 and 130,507,499.97 is: 180,109,186.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,013,921.55 : 318,814,852.98 = 130,507,499.97 : x
  2. Step 2: Convert to fraction form
    231,013,921.55/318,814,852.98 = 130,507,499.97/x
  3. Step 3: Cross multiply
    231,013,921.55x = 318,814,852.98 × 130,507,499.97
  4. Step 4: Simplify right side
    231,013,921.55x = 41,607,729,413,946,248
  5. Step 5: Solve for x
    x = 41,607,729,413,946,248/231,013,921.55
  6. Step 6: Final answer
    x = 180,109,186.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.